Connection for corrugated pipes.



G. E. WILSON. CONNECTION FORGORRUGATED PIPES.

APPLICATION FILED PEB.15,1909'.

Patented June 29, 1909.

GEORGE ii. WlLSOh, O l" CLINTON, IOWA.

CONNECTION FOR CORRUGATED PIPES.

Specification of Letters Patent.

Patented June 29, 1909.

Application filed February 15, 1909. Serial No. 478,076.

.T 0 all whom it may concern:

Be it known that I, GEORGE E. WILSON, a citizen of the United States, residing at Clinton, in the county of Clinton and State oflowa, have invented new and useful Improvements in Connections for Corrugated Pipes, of which the lollowingis a specification.

This inventionrelates to new and useful improvements in connections for corrugated pipes.

While the invention may be advantag ously employed for use with corrugated pipes in general, it is particularly adapted for use in connection with corrugated sewer pipes or conduits.

The invention more particularly coinprises a coupling device formed of two corrugated half rings which conformably fit over the adjacent ends of the pipes to be con nected and which are connected to one another by means of turnbuckle devices. In connection with a structure of this particular type the primary object of the invention is to provide a coupling means having novel turnbuckle connecting devices, parts of the latter being secured to the half rings in such manner as to materially strengthen the The turnbuckle devices are also con same. structcd so that they may be readily assembled with or removed from the half rings.

The structural details of the invention will be set forth at length in the following description which is to be read in connection with the accompanying drawing, the latter illustrating a prclerred and advantageous embodiment of the improvement while in the claims appended at the end of the description I have set l'orth the features by which the invention is distinguished from the prior art.

in the said drawing: Figure l is a perspeclive view illustrating in detached relation the adjacent end portions of the pipes to be comiecied and the coupling device which cooperates with said end portions. Fig. 2

a central longitudinal sectional view showing the coupling device assembled upon the end portions ol the pipes. Fig. 2-3 is a transverse sectional view showing the same relation of elements. Fig. 4 is a detail sectional view illustrating the arrangement of the nuts upon the threaded shanks ol' the turnbuckle device.

Similar characters of reference refer to corresponding parts throughout the several views.

The end portions of the pipes to be connected are shown at A and the coupling device which forms the subject matter of the present invention is shown at B. Such coupling device comprises two similarly constructed half rings, as 1. Each-half ring 1 is provided with peripheral corrugations,

s 2, which engage contormably with the corrugations of the pipe sections A. By virtue of such engagement when the half rings 1 are tightened, a strong clamping action thereof is had which effectually seals all joints. The sections A are thus positively held against axial displacement such as would promote disengagement from the coupling device B. The relation of the parts above stated is shown more particularly in Fig. 2. Angle iieces, as 3, are securedto the ends of the hall rings 1 These angle pieces are arranged one upon each corrugation and are of substantial L-shape, as is shown in l 3, comprising curved legs, as 4, which are riveted or otherwise secured to the half rings 1, and horizontal outwardly projecting legs, as 5. W hen the half rings 1 are assembled upon the ends of the pipes to be coupled, the angle pieces I, will be disposed in corresponding pairs, the legs 5 of the corresponding pairs being directly opposite one another and being formed with alined openings, as 6.

The turnbuckle connecting devices are indicated generally as 7 and each comprises a shank having oppositely threaded end tions and an enlarged centrally located attened portion, as 8, which affords a bearing surface for a wrench byineans ol which the devices are turned. The threaded end portions of the shanks project loosely through the openings 6 and are provided with nuts, as 9, which conforinablv lit in. counter sunk recesses, as 10, which are formed in the outer faces of the legs 5 and aline with. the openings 6. By virtue of this engagcn'ient of the nuts 9 in the recesses 10, said nuts are held against rotation when the shanks are turned and consequently the half rings 1 may be readily adjusted by proper rotation of said shanks into or out of cla'in 'iing engagement with the pipes A.

The legs 4 ol' the angle pieces 3 being socured upon each corrugation of the half rings assure ol' the even distribution of the clam ing force and at the same time material y strengthen the half rings at the points where the greatest stress is placed and thus prevent "tions of the shanks pass loosely through the openings 6 the half rings 1 may be quickly assembled upon the pipes A, after which the nuts 9 are turned upon said threaded end portions until they are engaged in the recesses 10. This may be readily accomlished by engaging one nut in its recess and by holding the other nut against rotation with a wrench held in one hand and by turning the shank with a wrench held in the other hand. The second nut will thus be moved axially into its recess.

From the foregoing it will be apparent that the device has a positive and an adjustable clamping action and consequently is thoroughly eflicient in operation; that the angle pieces reinforce the half rings at the points where the greatest stress is placed; and that the particular construction of the turnbuckle devices allows of the convenient and quick assemblage or removal of the half rings from the pipes to be connected. The invention is at the same time simple in its structural details and inex ensive to manufacture.

Having ful y described my invention, I claim:

"1. The combination with two corrugated pipes of a coupling device therefor compriscorrugated half rings for clamping engagement with said devices. angle pieces arranged at the ends of the he; rings and comprising curved legs rigidly secured to the half rings, and horizontal outwardly projecting legs and screw devices connecting the opposed horizontal legs.

2. The combination with twocorrugated pipes of a coupling device therefor comprising corrugated half rings for clamping engagement with said pipes, horizontally roj ecting legs provided at the ends of said alf rings and having openings therein, said legs having counter sunk recesses alined with said openings, shanks having threaded end portions extended loosely through the openings of corresponding legs, and nuts mounted upon said threaded end portions and engaging conformably and non-rotatably in said recesses.

- 31 The combination with two pipes and a coupling device therefor comprising half rings having outwardly projecting legs at the ends thereof, said legs having openings and counter sunk recesses alined with said openings, of means for connecting said half rings comprising shanks'having threaded end portions passing loosely through said openings and nuts mounted upon said threaded end portions and fitting conforinably and nonrotatably in said recesses.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. I

GEORGE E. V-IILSON. Witnesses ELsrE PoPPE, ELIZABETH .TILLIi-INGANZ. 

